The single-brake single-speed thing is becoming a daily occurance. What's the deal with that anyway? Do you think it's people who see people riding fixies with one brake (or no brakes) and not understanding how a fixie works and assuming a SS is the same thing? Or do you think it's people knowing what a fixed-gear bike is, buying one with a single brake, and then deciding for whatever reason to use the other side of a flip-flop hub?
I just saw a guy on campus turn left into the 'driveway' of a building, cutting through people walking on the sidewalk with one of the aforementioned bikes. And he didn't have a single finger on the (road-style) lever. Oy!